<template>
  <div>
    <template v-if="hasFile" v-for="(file, fileKey) of [innerFile || {}]">
      <div :key="fileKey" style="position: relative;">
        <template v-if="!file || !(file['url'] || file['path'] || file['message'])">
          <a-tooltip :title="'请稍后: ' + JSON.stringify (file) + ((file['url'] || file['path'] || file['message']))">
            <a-icon type="loading" />
          </a-tooltip>
        </template>
        <template v-else-if="file['path']">
          <img class="j-editable-image" :src="imgSrc" alt="无图片" @click="handleMoreOperation" />
        </template>
        <a-tooltip v-else :title="file.message||'上传失败'" @click="handleClickShowImageError">
          <a-icon type="exclamation-circle" style="color:red;" />
        </a-tooltip>

        <template style="width: 30px">
          <a-dropdown :trigger="['click']" placement="bottomRight" style="margin-left: 10px;">
            <a-tooltip title="操作">
              <a-icon
                v-if="file.status!=='uploading'"
                type="setting"
                style="cursor: pointer;" />
            </a-tooltip>

            <a-menu slot="overlay">
              <a-menu-item v-if="originColumn.allowDownload !== false" @click="handleClickDownloadFile">
                <span><a-icon type="download" />&nbsp;下载</span>
              </a-menu-item>
              <a-menu-item v-if="originColumn.allowRemove !== false" @click="handleClickDeleteFile">
                <span><a-icon type="delete" />&nbsp;删除</span>
              </a-menu-item>
              <a-menu-item @click="handleMoreOperation(originColumn)">
                <span><a-icon type="bars" /> 更多</span>
              </a-menu-item>
            </a-menu>
          </a-dropdown>
        </template>

      </div>
    </template>
    <a-upload
      v-show="!hasFile"
      name="file"
      :data="{'isup': 1}"
      :multiple="false"
      :action="uploadAction"
      :headers="uploadHeaders"
      :showUploadList="false"
      v-bind="cellProps"
      @change="handleChangeUpload"
    >
      <a-button icon="upload">{{originColumn.btnText || '上传图片'}}</a-button>
    </a-upload>
    <j-file-pop ref="filePop" @ok="handleFileSuccess" :number="number" />
  </div>
</template>

<script>
import { getFileAccessHttpUrl } from '@api/manage'
import JVxeCellMixins from '@/components/jeecg/JVxeTable/mixins/JVxeCellMixins'
import { ACCESS_TOKEN } from '@/store/mutation-types'
import JFilePop from '@/components/jeecg/minipop/JFilePop'

import JVxeUploadCell from '@/components/jeecg/JVxeTable/components/cells/JVxeUploadCell'

export default {
  name: 'JVxeImageCell',
  mixins: [JVxeCellMixins],
  components: { JFilePop },
  props: {},
  data() {
    return {
      innerFile: null,
      number: 0
    }
  },
  computed: {
    /** upload headers */
    uploadHeaders() {
      let { originColumn: col } = this
      let headers = {}
      if (col.token === true) {
        headers['X-Access-Token'] = this.$ls.get(ACCESS_TOKEN)
      }
      return headers
    },

    /** 上传请求地址 */
    uploadAction() {
      if (!this.originColumn.action) {
        return window._CONFIG['domianURL'] + '/sys/common/upload'
      } else {
        return this.originColumn.action
      }
    },

    hasFile() {
      return this.innerFile != null
    },

    /** 预览图片地址 */
    imgSrc() {
      if (this.innerFile) {
        if (this.innerFile['url']) {
          return this.innerFile['url']
        } else if (this.innerFile['path']) {
          let path = this.innerFile['path'].split(',')[0]
          return getFileAccessHttpUrl(path)
        }
      }
      return ''
    },

    responseName() {
      if (this.originColumn.responseName) {
        return this.originColumn.responseName
      } else {
        return 'message'
      }
    }

  },
  watch: {
    innerValue: {
      immediate: true,
      handler() {
        if (this.innerValue) {
          this.innerFile = this.innerValue
        } else {
          this.innerFile = null
        }
      }
    }
  },
  methods: {

    // 点击更多按钮
    handleMoreOperation(originColumn) {
      //update-begin-author:wangshuai date:20201021 for:LOWCOD-969 判断传过来的字段是否存在number，用于控制上传文件
      if (originColumn.number) {
        this.number = originColumn.number
      } else {
        this.number = 0
      }
      //update-end-author:wangshuai date:20201021 for:LOWCOD-969 判断传过来的字段是否存在number，用于控制上传文件
      if (originColumn && originColumn.fieldExtendJson) {
        let json = JSON.parse(originColumn.fieldExtendJson)
        this.number = json.uploadnum ? json.uploadnum : 0
      }
      let path = ''
      if (this.innerFile) {
        path = this.innerFile.path
      }
      this.$refs.filePop.show('', path, 'img')
    },

    // 更多上传回调
    handleFileSuccess(file) {
      if (file) {
        this.innerFile.path = file.path
        this.handleChangeCommon(this.innerFile)
      }
    },

    // 弹出上传出错详细信息
    handleClickShowImageError() {
      let file = this.innerFile || null
      if (file && file['message']) {
        this.$error({ title: '上传出错', content: '错误信息：' + file['message'], maskClosable: true })
      }
    },

    handleChangeUpload(info) {
      let { originColumn: col } = this
      let { file } = info
      let value = {
        name: file.name,
        type: file.type,
        size: file.size,
        status: file.status,
        percent: file.percent
      }
      if (file.response) {
        value['responseName'] = file.response[this.responseName]
      }
      if (file.status === 'done') {
        if (typeof file.response.success === 'boolean') {
          if (file.response.success) {
            value['path'] = file.response[this.responseName]
            this.handleChangeCommon(value)
          } else {
            value['status'] = 'error'
            value['message'] = file.response.message || '未知错误'
          }
        } else {
          // 考虑到如果设置action上传路径为非jeecg-boot后台，可能不会返回 success 属性的情况，就默认为成功
          value['path'] = file.response[this.responseName]
          this.handleChangeCommon(value)
        }
      } else if (file.status === 'error') {
        value['message'] = file.response.message || '未知错误'
      }
      this.innerFile = value
    },

    handleClickDownloadFile() {
      if (this.imgSrc) {
        window.open(this.imgSrc)
      }
    },

    handleClickDeleteFile() {
      this.handleChangeCommon(null)
    }

  },
  // 【组件增强】注释详见：JVxeCellMixins.js
  enhanced: {
    switches: { visible: true },
    getValue: value => JVxeUploadCell.enhanced.getValue(value),
    setValue: value => JVxeUploadCell.enhanced.setValue(value)
  }
}
</script>

<style scoped lang="less">
.j-editable-image {
  height: 32px;
  max-width: 100px !important;
  cursor: pointer;

  &:hover {
    opacity: 0.8;
  }

  &:active {
    opacity: 0.6;
  }

}
</style>
